JF
James Fitzgerald — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this James Fitzgerald across the 1920, 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed), with identified parents James & Bridget — first a son (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Fitzgerald |
| Given Name | James P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis City |
| Additional Details | |
| Occupation | Automobile Salesman |
| Industry | Automobile Sales |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 468 |
| Highest Grade | C 2 |
| 1935 Residence | Same Place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Automobile Salesman |
| Township / Ward | St Louis City |
| Est. Birth Year | ~1912 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Marie Fitzgerald | Daughter | — | 30 | ~1910 |
| Bridget Fitzgerald | Head | — | 52 | ~1888 |
| Thomas Fitzgerald | Son | — | 21 | ~1919 |
| James Fitzgerald | Son | — | 28 | ~1912 |
Census Appearances
1920
None, Missouri
Son, age 7
None, Missouri · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzgerald |
| Given Name | James Jr |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Louis, …
Son, age 18
St Louis, Missouri · implied b. ~1912 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzgerald |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Son, age 28
St.-Louis-City-County, Missouri · implied b. ~1912 — 4 household members
| Surname | Fitzgerald |
| Given Name | James P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis City |
| Occupation | Automobile Salesman |
| Industry | Automobile Sales |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 468 |
| Highest Grade | C 2 |
| 1935 Residence | Same Place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links James Fitzgerald across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father James Fitzgerald (~0.92 confidence) and mother Bridget Fitzgerald (~0.92 confidence) and mother Doris Fitzgerald (~0.92 confidence) and mother Minnie Fitzgerald (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Fitzgerald
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Bridget Fitzgerald
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Doris Fitzgerald
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Minnie Fitzgerald
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Fitzgerald
Son · 1940 · age 28 · b. ~1912 · Missouri
★ You are viewing this record
Sibling
Thomas Fitzgerald
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Fitzgerald
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — St.-Louis-City-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-City-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02203-00158)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bridget Fitzgerald | 52 | Head | Childrens Guardian | Ireland |
| 2 | Marie Fitzgerald | 30 | Daughter | Time Clerk | Missouri |
| 3 | James P. Fitzgerald THIS PERSON | 28 | Son | Automobile Salesman | Missouri |
| 4 | Thomas Fitzgerald | 21 | Son | Truck Driver | Missouri |
| 5 | John Lipinski | 11 | Head | — | Missouri |
| 6 | Jeanette Lipinski | 10 | Ward | — | Missouri |
| 7 | Lawrence Lipinski | 9 | Ward | — | Missouri |
| 8 | Billy Lipinski | 6 | Ward | — | Missouri |
| 9 | Delores Lipinski | 5 | Ward | — | Missouri |
| 10 | Anthony Lipinski | 4 | Ward | — | Missouri |
| 11 | Edward Gensert | 46 | Head | Auto Mechanic | Missouri |
| 12 | Anna Gensert | 45 | Wife | — | Missouri |
| 13 | Marie Gensert | 20 | Daughter | Stenographer | Missouri |
| 14 | Paul Gensert | 16 | Son | — | Missouri |
| 15 | Chester Webbe | 44 | Head | Showman | Missouri |
| 16 | Marie Webbe | 29 | Wife | Clerk | Missouri |
| 17 | John Foley | 11 | Stepson | — | Missouri |
| 18 | Rose Marie Foley | 10 | Stepdaughter | — | Missouri |
| 19 | Elizabeth Bartle | 64 | Mother-in-law | — | Missouri |
| 20 | Richard Bartle | 30 | Son | Stenographer | Missouri |
| 21 | Louis H. Ludekum | 43 | Head | Salesman | Missouri |
| 22 | Genevieve Ludekum | 33 | Wife | — | Missouri |
| 23 | James Ludekum | 6 | Son | — | Missouri |
| 24 | George Holtgrewe | 33 | Head | Assistant Manager | Missouri |
| 25 | Alice Holtgrewe | 25 | Wife | — | Missouri |
| 26 | Patrick J. Mcnamara | 52 | Head | Conveyance | Missouri |
| 27 | William Mcnamara | 50 | Brother | — | Missouri |
| 28 | Helen Mcnamara | 34 | Sister | Stenographer | Missouri |
| 29 | Hannah Beckmann | 51 | Housekeeper | Housekeeper | Missouri |
| 30 | Frank D. Barry | 38 | Head | Waiter | Missouri |
| 31 | Emma Barry | 29 | Wife | Hostess | Illinois |
| 32 | Edward J. Mahaney | 50 | Head | Sprinkler Installation | Missouri |
| 33 | Winifred Mahaney | 49 | Wife | — | Missouri |
| 34 | Edna Mae Mahaney | 23 | Daughter | Stenographer | Missouri |
| 35 | Virginia Mahaney | 20 | Daughter | Receptionist | Missouri |
| 36 | Lorraine E. Mahaney | 17 | Daughter | — | Missouri |
| 37 | Catherine Mahaney | 15 | Daughter | — | Missouri |
| 38 | Marion Kaesser | 55 | Head | — | Scotland |
| 39 | Robert Lee Kaesser | 21 | Step-son | Proprietor | Missouri |
| 40 | Mildred Kaesser | 17 | Daughter-in-law | — | Missouri |
Pedigree Summary
James + 2 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)